unity实现点线动画免费下载

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主要应用LineRenderer组件实现连线效果，根据距离判断是否需要连接，并设置透明度；

直接上代码；

using UnityEngine;public class DrawLine : MonoBehaviour
{/// <summary>最大距离</summary>float maxDistance;/// <summary>最小距离</summary>float minDistance;/// <summary>点的标签</summary>int pointTag;LineRenderer line;SphereInfo localInfo;Collider col;Material localMaterial;Color colorLine = Color.white;SphereInfo tempInfo;Collider[] sphereRayToColliders;float tempDistance;void Start(){maxDistance = PointClampData.Instance.maxDistance;minDistance = PointClampData.Instance.minDistance;pointTag = LayerMask.GetMask(PointClampData.Instance.pointTag);line = GetComponent<LineRenderer>();localInfo = GetComponent<SphereInfo>();col = GetComponent<Collider>();localMaterial = GetComponent<Renderer>().material;}void Update(){ConnectMulti();UpdateActiveConnectionMulti();UpdatePassiveConnectionMulti();SetVisible();}/// <summary>发起连接</summary>void ConnectMulti(){if (localInfo.connectTarget != null){tempInfo = localInfo.connectTarget.GetComponent<SphereInfo>();if (tempInfo.connectSourceOne != col && tempInfo.connectSourceTwo != col && tempInfo.connectSourceThree != col){localInfo.connectTarget = null;}else{return;}}sphereRayToColliders = Physics.OverlapSphere(transform.position, maxDistance, pointTag);if (sphereRayToColliders == null || sphereRayToColliders.Length <= 0) return;for (int i = 0; i < sphereRayToColliders.Length; i++){tempInfo = sphereRayToColliders[i].GetComponent<SphereInfo>();if (tempInfo == localInfo) continue;if (tempInfo.connectSourceOne != null && tempInfo.connectSourceTwo != null && tempInfo.connectSourceThree != null) continue;if (col == tempInfo.connectTarget) continue;line.positionCount = 2;line.SetPosition(0, transform.position);line.SetPosition(1, sphereRayToColliders[i].transform.position);localInfo.connectTarget = sphereRayToColliders[i];colorLine.a = 1;localMaterial.color = colorLine;if (tempInfo.connectSourceOne == null)tempInfo.connectSourceOne = col;else if (tempInfo.connectSourceTwo == null)tempInfo.connectSourceTwo = col;else if (tempInfo.connectSourceThree == null)tempInfo.connectSourceThree = col;return;}}/// <summary>更新主动连接</summary>void UpdateActiveConnectionMulti(){if (localInfo.connectTarget == null) return;tempDistance = Vector3.Distance(transform.position, localInfo.connectTarget.transform.position);if (tempDistance > maxDistance){line.positionCount = 0;localInfo.connectTarget = null;}else{if (tempDistance < minDistance){colorLine.a = 1;}else{colorLine.a = 1 - (tempDistance / maxDistance);}line.SetPosition(0, transform.position);line.material.color = colorLine;}}/// <summary>更新被动连接</summary>void UpdatePassiveConnectionMulti(){if (localInfo.connectSourceOne == null && localInfo.connectSourceTwo == null && localInfo.connectSourceThree == null) return;if (localInfo.connectSourceOne != null){PassiveConnectionData(ref localInfo.connectSourceOne);}if (localInfo.connectSourceTwo != null){PassiveConnectionData(ref localInfo.connectSourceTwo);}if (localInfo.connectSourceThree != null){PassiveConnectionData(ref localInfo.connectSourceThree);}}void PassiveConnectionData(ref Collider collider){tempDistance = Vector3.Distance(transform.position, collider.transform.position);if (tempDistance > maxDistance){collider = null;}else{LineRenderer temp = collider.GetComponent<LineRenderer>();if (temp.positionCount != 0)temp.SetPosition(1, transform.position);}}/// <summary>设置小球显隐</summary>void SetVisible(){if (localInfo.connectTarget == null && localInfo.connectSourceOne == null && localInfo.connectSourceTwo == null && localInfo.connectSourceThree == null){colorLine.a = 0;localMaterial.color = colorLine;}}}

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